Heel-making machine.



G.E.AEEAED. HEEL MAKING MACHINE, APPLICATION FILED AUG. 5, 19 l3.

l, l l l 75, Patented Sep 8, 1914.

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HEEL MAKING MACHINE.

APPLICATION FILED was, 191s.

l 1,110,175, Patented Sept.8,1914

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C. E. ALLARD.

HEEL MAKING MACHINE.

APPLICATION FILED AUG.5, 191s.

l., l l O, l 7 5 i Patented Sept 8, 1914,

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attorney awww/$04 am yg f mf/@Mam C. E; ALLARD. HEEL MAKING MACHINE.

APPLICATION FILED AUG. 5, 1913.

1,110,175. Patented m1111911 6 SHEETS-SHEET 5.

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@wwe/Wto@ I C. E. ALLARD. y I HEEL MAKING MACHINE. PPPP IGATION FILED AUG 5, 1913.

1,1 10,175. I Patented 1181111191 6 SHEETS-SHEET 6.

r l I imitan sinne rairnnr onin-1 GHBLES E; ALLAH-ll), 0F HAVERHILL, MASSACHUSETTS.

l HEEL-MAKING. MACHINE..

ToaZZ whom it may concern: Y Be it known that I, CHARLES E. ALLARD, .a

citizen of the United States, residing at Clt Haverhill, in the county of Essex and State ot' lilass'achusetts, have invented new and 'useful Improvements in Heel-Making Machines, of which the cation.

This finveiition relates to heel making machines the broad object of the invention l 'being -to pioducea machine for operating upon heels ot' shoes `during the building. up -ot the heel from any suitable number of litts, so as to materiallyincrease the output oi' the machine and proportionately reduce the expense otl production ot heels.

Under the system of `building up heels at present in use, the operator builds up the heel in-a small machine, then swings overthe heel an arm with a cam lever attached Then withl which presses the heel down. l liis't'oot he operates a treadlev and drives a nail up into tne heel after whichhe swings back thelever, removes the heel by hand and places it on a board. This operation is continued until the board is-i'ulloff heels.

l Theboards are removed and-placed in a pile under a press and the press is screwed down titnjhtlly7 and the heels allowed to remain under pressure for ,twelve hours. Upon r-euioval from'thepressthe heels are placed in a drying room for abo'ut 'twentystour hours and they are then ready to compress.

This requires about'thirty-six hours from: t the time the heel is pasted until 'it' is readyl to compress.. lilith the aid of the direct pressure of each individual heel for about` a minute or a minute and a half, vasprovided for in the present invention, the cementor paste isallowed to set and this enables the heels to be pasted in the torenoon and coma pr s' in one day or three times many as under yuse the operatorl is. required to .reach all overtlio old system. Under the system now in the benchifor. the lifts `ot which the yheels Specicaton of Letters Patent.

following is a 'speciliyrateima sept. ei, iai'a.

.Appiicanon ined August 5, i913: seriai No. 783,106.

are' composed. There are different.compart-v ments fordilierent sizes of lttsv arranged around the bench; In the present machine a revolvinglift holder is provided, the saine being .arranged within convenient reachof the operator who may readily turn the saine by hand independently of any 1other part of the machine. Thisgreatl'y expedites the building up of the'heels and saves much physical effort on the part of the operator. Thesaving of nails alone is quite an'l item when it is vconsidered that in a plant of nie'- diu'nroutput nearly three millionnai-ls are used in a year whichequals over four their Sand pounds at a cost of ive cents per pound. V`

The machine 'hereinafter described, after being' started, continues its operation through one complete cycle automatically and without anyattention whatever on the part of the operator.` v

- YVith theabove and other cbjects inview,

.the invention consists in the construction, lcombination and arrangement of parts, as

will hereinafter be more fully described, illustrated and claimed.

In the accompanying drawings :-Figure,-

llis' a frontelevation of a heel making nial chine, the revolving turret head being shown in section. Fig. 2 is a plan view of the turret head, showingalso the -stationary canif l Fig. 3 is a plan-V view of the lift holder. Fig. l is a. side'eleand pawl or detent trip.

vation on an enlargedscale of one ofthe heel clampsor heel clampingunits. .Fig

5 is a plan view 'of the saine omitting the plunger and the parts carried thereby. Fig. (3 is an inner end view of the same. Fig. 7

is a vertical longitudinal section on an en-l largedl scale through one of the heel clamps or heel clamping. units. Fig. S is a-'plan view of one of the heel tables detached. Fig. 9.is anedgeelevation of one of tlieftable sections. Fig. 10 is 'an edge view of the other table sect-ion. Fig.l 11 is a plan view ofthe i' heel table support. Fig. 12 is a vertical cross section on the line 12-12- on Fig. 4f. Fig. 13 is a detail perspective view of one ot the l heel-justifyingmembers Fig. let-is a diainetrical section througlrthe driving pulley and adjacent parts, illustrating the clutch mechanism. `Figl 15 is a view of theclutch mechanismr taken at right anglesto Fig. 1st

partly in. elevation and partly in section.

.Referring primarily to Fig. 1, the heel making machine contemplated in this invention is illustrated, in the preferred embodiment thereof, as embodying a support` ing base A, a column. or pedestalv B secured tothe base bycap screws 1 or their equivalent anch extending upwardly to a suitable' bottom thereof as shown" in Fig. 1, said gearl :screws 8.

wheel 3 meshing with and being driven by a pinion et fast on the upper end of a turret operating shaft 5 extending vertically and' journaled in bearings 6 formedv on brackets 7 shown as .secured to the column B by cap On the lower end of theI shaft. 5 is fastened a bevel gear wheel 9 which meshes with and is driven another bevel gear wheel 10 fast on`a driving shaft 11 j ourn'aledin bearings 12 supported at a suitable elevation by .pillow blocks 13 shown as fastened tothe ,base A by cap screws 14C. f

15 designates a band pulley by which mo-- tion is imparted to the driving shaft 11 for the purpose' of actuating the entire mechanism-of the machine as -will hereinafter ap pear. It will be understood at this point, however, thatthe shaft l11 in revolving will impart rotary motion to Ithe shaft 5 and through the gear wheels 3 and ,4 to the turret, head. Itvmay also be 'stated at this point that the turret head C does not revolve continuously but an intermittent rotary move-' ment is imparted thereto so as to enable said turret head to remain stationary for the desired length of time to enable the operator to build up a heel and placethe same in one ofthe heel clampingv units preparatory to the operation of the machine on. said heel.

As shown in Figs. 1. and 2 the revoluble turret head C has secured along its outer margin or periphery a circular series of heel clamps or heel clamping units E, each of said units being identical with the rest so that it will be necessary only to describe one of said units in detail.

Referring now particularly to Figs. '4, 5, 6 and 7, it will be seen that each unit E comprises a body or frame member 1G having at its inner end a vertical flange 17 provided.

outer end the heel clamp or unit E comprises raient-s heel is pressed by the ter particularly described.

lined abutment 2O plane near the bottom of the by forming said table into-two sections which as hereinafter described are adapted tobe moved toward and away from each other and when spread apartv or moved away from each other will permit the completedheel to drop into a receptacle-placed -beneath the vline of sweep of all of-the tables of the series of units.

, Thebody 16 of the unit `is centrally cut away or left open las `shown at 22 and the` table sectionsdesignated at 23 and 24 operyate in a horizcntalplane above the body 1G in releasing the heel as indicated.A 25 desig nates a heel table support which as shown' in Fig. 5 extends across the central opening positely lying portions of the body 16 by means of caps 27 fastened by cap screws 28 to the body 1G; The supportA 25 is provided withv a central opening 29 in-whic`h fits'a 22 above referred to and has its opposite ends reduced as at 26 and secured to the op fulcrum pin 30 which also passes through openings 31 in the table sections 23 said table sections turning about said ful-` f crum pin 30 as a center. The table sections shown in the form of pins or. studs. Oneof` said pins is fastened to each tab-le section and when the table is closed as` shown in Fig. 8, said 'shoulders 34 lie close together.

1n order 'to spread or open the table, I emlployV a spreader 35 having a wedge-shaped `end portion or member 36 which, as shown in Fig is adapted to force its way be lOU ies

tween the shoulders 34, the result of which is l to openthe table sections or swing the saine horizontally away from cach other, thus permitting thepreviously supported heel to drop through ,theA open center 22 of the` clamping unit where it is caught in the underlying receptacle. The' spreader .35 is shown in the form of a straight recipro- Si" eatingbar fastened through a guide'way`37 in the body 16 of the unit and projecting at its'inner end beyond the inner face '37 of the unit frame where it is operated upon by iis a centrally located cani G as will hereinafter i.

appear. y y 2 H represents the plungerby means of ywhich the heel is pres-sed tightly against the fixed abutment 20 after the lifts have ybeen justitieel by the means hereinafter particu j larly described. This plunger Hcomprises" threaded and is adjustable lengthwise withiny the member 439 by meansl of anut 40 held by, a 'jam or lock nut/4l.. This providesfor the members38 and 'Ihe member 38 is varying the length of theplunger H so as toA provide. the necessary throw or movement ofthe plunger in accordance with the thickness ofthe heels upon which the machine operating. l y The member 39 of the plunger H'extends through and projects bevond the inner `face 37" of the body 16 of the unit and is pro-v vided with 'an anti-friction roller 42 joui'- vnaled'ona pin 43. carried by the plunger, the said roller 42 being adapted to come into Contact with the cam *Gr above4 referred to.

. The cam thus serves' to .drive the plunger II -tward the fixed abutment 20 for 4the purpose of holding the heel under pressure.

. Y The member 38 ofthe plunger H" is provided at its inner end with an enlarged head.

"or presser foot 44 extending from which is' a pm 45 having connected thereto one end of--a-'contractile plunger returning spring i or body 16. The member o9' of the lunger'. II is also provided with' ratchet t th 4.8:

4 6' the opposite extremity of t'vhi'chr is atta ched at 47 to a fixed part of the unit frame adapted tov be engaged by the point -of a pawl'or detent. 49 whichis pivotally'mount# ed at 50 on the body 16 ofthe unit, the detent 49 being thus adaptedto hold `theplun-l ger in its heel clamping positionvafter it has been 4thrust toward the fixed abutment .'20 xby*the'camG.-

rI`he pawl or datent 49 is further provided with Va trippingextension 5I which, atthe' appropriate time comes into contact with a' pawl trip '52 shown in Fig. 2 and connected to and supported by the cam G, being shown as fastened theretoby screws 53 'or their equivalent. The plunger head or presser foot 447is formed with Aa guide way ,54 extending lengthwise thereof, horizontally, and perpendicularly with `respect .to the path of The guide movement/of the plunger' II.

way 54 is designed to receive the bases 55 of a pair vof lift-justifying members 56, two

of such members being employed in "connection with each unit and being designed to engage the margins or edges of the lifts so as to move all of the-lifts into perfect alinement'after they have been pasted or cemented together andl before 'the paste or cement becomes set. 'Ihe shape of the justifying members. 56 is clearly illustrated in the sectional View, Fig. l2, wherein it will be seenth-at each of the justifying. mehr face 57 corresponding in curvature to the curvature of the heel. Each cf the bases 55 is proyided with the oppositely projecting ribs or extensions 58 which slide back and forth the spreader 35,

eers has-a' concared inner heel engaging' in corresponding portions'59 of the rguide way 54 in the plunger head or presser foot 44.

-The bases 55 of theheel-justifying inem'- bers are internally threaded as shown 9.13.60, one being providedl with a-rigl'it hand threadV 70 and the other with v a .left hand thread.` In conjunction therewith I employ afeed screw 6l provided atV opposite sides of its center with right and left hand screw threads as shown so vthat when the screw 61 isturned 475 in one direction, the justifying membersl willibe moyedtoward'eachother and when said screw is turned in the opposite di-v v -rection'7 the justifying members will be moved away from each' other. In order to .80

impart` movement tothe screw 6l, said screw has Vfast on one end lthereof van operating I gear 6:2 whiqh meshes with aV stationary vrack bar 63, said rack barlbeing. held stationary 1 a rack Abar holder-64connected tothe 85 .frame of vthe unit by a'cap screw 65 or its equivalent. 'Il-he holder .64 is provided with .a notch tol receive the-[rackbar l63,* the flatter being held 'xedby. means cfa-binding screw 67'. *By loosening 4the' screw 67,- the 190 rack bar; 63inay be nioved longitudinally foi-the purposev primarily adj usting,` the heel-j ustif-ying member`s56 so' that 'they will perate onthe lifts of vthe'b'uiltup heel and force the same into alinementjust vbefore' ,9'5

fixed abutmentZ-O. I. l

It will be observed that the heel-justify.-

. the plunger head presses the heel against the. l l

ing .members together with theinoperatscrew 6l and the gear `62 are carried by 100 lthe plunger head ndfsaid justifying meinbers a're operated by the gear 6:2 rolling over .and mesh-ing with the rack bar 63. sthe plunger head 44 moves toward the 'Xed abutment 20, the justifying-members 56 are 31)5 moved toward eacnther. andin the reverse movement of the" plunger head, thejiistify-V ing'members are moved away from each other.l After the plunger has been released l and allowed to be drawn awayv from the'iiq fixed abutment 2O by .means of the A spring 46,y thereby releasing the heel, the table F is opened by the inward movenientfof the spreader-35 andthe completedv heeldrops` into a receptacle placed beneath.'l 'Theil spreader 35 is retracted 'or moved back `to'- its inoperativeposition by'means of a re "said cam as indicated at 72 and passinga .binding screw`73 through the divided por- 1'40 tions ofthe cam at one side of the spindle thrust toward the" tired abutment'QO. AThedetent 4:9 engages the teeth- 4S of the plunger and holds the plunger thereafter until the unit referred to has made a nearly complete revolution or' sweep around the axis of the machine.` J ust before a complete revolution is effected, the `face 70 of the cam G which' is of slightly greater radius than the face 69, acts against'the roller t2 to press the plunger H alittle farther toward the fixed. abutment 20." rlhis relieves the pavvl 49 vand enables the pavvl trip 52 to act on the tripping eirltension 51 to rck the paWl entirely out of 'engagement-'With the teeth d8.v Then after the roller l2 passes off the face'- 70 of the cam,

the spring el@ retracts the plunger and not only releases the pressure on the heel between .the

` plunger head and the abutment .20 but also effects a spreading apart of the justifying 4 members 56.` The heel is now entirely re- 'leased but still rest-s on the table F.- AThe projectingend of thespreader now comes into contact -vvith the face'7l of the cam G, thrusting theIWedge-shaped members 36 between the shoulders'A 34 of the table sections. Boflthis opens the table and permits the heel to drop into a receptacle beneath. The unit Which yhas 'just been emptied then moves to its original lling lposition and the operator after pastingor cementing together the lifts 35 Aforming another heel places said heel in the unit just vacated whereuponl the operation hereinabove described is repeated.

lt will thus be seen that when a composite heel is placed in the machine, it is,A carried Ao practically through an entire cycle or revolution of the turret head before it is dropped into its receptacle, thus affording ample time for the paste or cement to set, the heel being bearings 7'5 and 76 respectively sovthat it.

. will turn easily and is held in place by anut 77 threaded on the upper end of the spindle or reduced portion 7d of the column. The holder D as shown in Fig. 3 is divided into a number of compartments or stalls designed 6o to receive lifts of diiierent sizes which may be readilypicked up by the operator without the necessity of reaching all over a bench in laccordance with the present practice. The compartments of the holder. D may be brought consecutively over the ,junit Wait- ,turret head thereon, means for revolving :minare i ing to receive the composite heel thus enabling the operator to perform his Work fully without movinofrom his position.

In order to provide' for the intermittent' rotation of the turret head C, thedriving pulley l5 above "referred `to is normally loose on-the shaft 1l' but is adapted to take upv and. revolve the driving shaft l1 -by means of a vclutch interposed between. the pulley 15' and the shaft vll and thrown linto 75 operation by means of a foot operated tr-eadle 78 pivotal'ly mounted at 8l. When the op-A crater depresses the treadle 78 the clutch is y thrown in by the arm .8() of the treadle,

whereupon the shaft 11 turns one complete 80 l revolution, thereby imparting a fraction of a revolution to the turret head C. ,F o1' eX- ample, if the turret head comprises twelve. units E, the gearing will be designed so that one complete revolution of the driving shaft-*S5 '11 Will cause one-twelfth of the complete 78, itis thrown out of operation upon the 9o l completion of one revolution of the shaft l1 by means'of a ,donf 7 9 struck by a' projection y v82 havinga fixed relation to the shaft 1l.

'llhe turret head then remains stationary until another unit receives its heel and the treadlev78 is again depressed. rlhe dog 79 is moved out of the path of the projection 82 at the time the clutch is thrown in.

`What is claimed is :ff

1. In a heel making machine, the combina-i 1,00 tion of a supporting frame, a revoluble tui ret head thereon, meansfor revolving said head, a circular series of heel clamps carried by said head and each embodyin opposed and relatively movable lift-justi ying members and heel-compressing means including .a reciproctory compressing plunger, and plunger-operating means.

2. na heel making machine, the combination of asupportingframe, a revoluble turret head thereon, means' for revolving'said head, a circular series of heel clamps carried by said head and each embodying opposed and relatively movable lift-justifying -members and heel-compressing means including a reciprocatory compressing plunger, and a cam for operating said plunger.

3.-.ln aheel making machine, the combination ofv a supporting frame, a revoluble 1'20 said head, a. circular series of heel clamps carried by saidv head and each embodying .opposed and relatively movable and liftjustifying members and heel-compressing means including a reciprocatory compress` ing plunger, and a stationary cam for opy erating said plunger'. i

4. In a heel'making machine, the come. nation of a supporting frame,A a revoluble turret head thereon, means for revolving 130 said head, ja circular series of heelclampsl y carried b'ysaid `head and each embodying ppposcd and relatively'movablc litt-justify-x ing members, heel-compressing means including a reciprccatory compressing plungerand an independent detent for holding said plunger in compressing position, and

plunger-operating means.

5. In a heel making machine, the combination of a supporting frame, a revolubl'e turret head thereon, means for .revolving said head, acircular series Lof 'heel clamps carried bv said head and each 'embodying lift-justifying members, heel compressing means including a compressing plunger fand a detent for holding said plunger in compressing position, plunger-operatingmeans, and means fortripping said detent.' f 6. In a'heel making machine, the combilnation of a supporting frame', a revoluble -turret head thereon, means for revolving y said head, and a circular, series of 'heel clamps carried bysaid head, eachl embodying a heel table, lift-justifying means,flieelcom pressing means and means for automatically displacing said table to permit the heel to 7.- In a heel making machine, the/,combination etal supporting` frame, a revoluble saidhead, and a circular series of heel turret head thereon, means for` revolving |clamps carried said head, each embodying a heel table, lift-justifying means, l'heelcompressing means and means for automatir. cally displacing said table'tolpermit the heel to drop.,-

8. In aahee'll making machine, thecombi nation lof a suppo rting'framea revoluble turret-heath thereon, means for revolving said head, f and a pircular" series of heelI clamps carried by said head each embodyingv a-sectional heel table, lift-.justifying means,

heel-compressing means ancbmeans for aultomtically displacing the sections of said table to permit the heel to drop.

9, In a heel making' machine, the combination of a supporting frame, a revoluble turret head thereon, means for revolving said head, and a circularl series .of heel clampscarriedby said head, each embodying a heel'tablc comprising pivoted-sections, liftjustifying means, heel-.compressing vmeans and means for automatically moving said sections apart to permit the heel to drop.

10. In a heel 'making machine. the combination of a supporting' frame, a revoluble turret head thereon, means ,for revolving said head, and a circular series of heel clamps'carried by said head, each embodying a divided heel table comprising jointed table sections to permit vthe heel to drop.

12,- In a heel making machine, the combination of a supporting frame, a revoluble turret head thereon, means :tor revolving said head, and a circular series of hee' ing aldivided heel table'ccmpri'sing jointed sections, liit-justiiyingl and -heel-compressspreader comprising a. Wedge-shaped member, 'and shoulders on the table sections bemovable. 1

13. In a heel making machine, the combination of a supporting frame, a revoluble turret head thereon, means for revolving said carried by said head, each lembodying a divided heel table comprising jointed sections, lift-justifying and heel-compressing means',- a spreader for opening the table sectionsv to prising a Wedg shaped member, shoulders ori-the' table sections between Which said spring for closingsaid table sections.

nation of a supporting frame, a-'re'voluble said head, ach-cular series of heel-clamps carried by 'saidl head and eachl embodying a tions to permit the heel to drop, said spreader comprising L Wedge-shaped mem-v ber, and shoulders on the table sections between which said 'Wedge-shaped member 'is movable, and-'a cam forfoperating said spreader. l f Y vl5. In a heel making machine, the combination of a supporting frame, a revoluble said head, a-'circular series of heel clamps lcarried by said head and each embodying a divided heel table comprising jointed sec# tions, litt-justifying' and heel-compressing means, a Spreader for opening the table sections to permit theA heel to drop,k said spreader comprising a Wedge-shaped mem- Which said Wedge-shaped member is movable and means for retractingjsaid spreader, anda cam for operating said spreader. I le., In a heel making machine, the combination of a supporting frame, a revcluble permit the heel to drop, said spreader'comwedgeshaped member isl'movable 'and` a ber,""shoulder's on the table sections between` 11. In a heel making machine,'the combination of asupporting' "frame, a revoluble i sections,liitjustiiying andA heel-compress` ing means and a spreader for opening the clamps carried by said head, eacliembodyi ing means, a spreader' for opening the table sections to permit-the heel to drop, said tween which said Wedge-shaped member is head, 'and' a circular series of heel clamps j lil. In a heel making machine,fthe combi- `turret head thereon, means `for revolving divide/d lheel tablecomprising jointed sections, litt-justifying and heel-compressing means, a-spreader for opening the tablesecp lio turret head thereon, mea-nsv for revolvinga turret head thereon, means for revolving said head, a circular ser-les of heel clamps carried by said head and each embodying lift-justifying members, ,heel-compressing means including a compressing plunger, a dctent for holding said plunger in compressing position and means for retracting said plunger, plunger-operating means, and

means for tripping said detent.

17. In a heel making machine, the combination of a supporting frame, a revoluble lturret head thereon, means for revolving said head, and a circular series of heel clamps carried by said head, each embodying a heel table, a heel-compressing plunger and lift-justifying means carried by said plunger.

18. In a heel making machine, the combination of a supporting -frame, .a Arevoluble turret head thereon, means forA revolving said head, and a circular series of heel clamps carried by said head, each embodying a heel table, a heel-compressing plunger and lift-justifying members carried by said plunger and movable perpendicularly t-hereto.

' 19. In a heel making'machine, the combination of-a supporting frame, a revoluble turret head thereon, means for revolving said head, a circular series of heel clamps carried by said head, each embodying a heel table, a heel-compressing plunger, lift-justifying members carried by said plunger and rack and pinion mechanism for actuating the lift-justifying members, and a centrally arranged cam for actuating said plungers successively. Y

20. In a heelm-aking machine, the combination of a supporting frame, a revoluble turret head thereon, means for revolving said head, a circular series of heel clamps -carried by said head, each embodying a heel table, a heel-compressing plunger, lift-justifying members carried by said plunger and rack and pinion mechanism for actuating the lift-justifying members comprising a feed screw carried by said plunger and engaging the lift-justifying members, a pinion on said screw and a stationary rack bar With Which said pinion meshes, and a centrally arranged cam for actuating said p'lun-I gers successively.

2l. In a heel making machine, the combination of a supporting frame, a revoluble turret head thereon, means for revolving said head, a. circular series o'fjheel clamps carried by said head, each embodying a heel table, a heel-compressing plunger, lift-justitying members carried by said plunger and means controlled by the movements of said plunger for vmoving said lift-justifying members toward and away from each other,

f' and a centrally arranged cam for actuating said plungers successively. l p

20, In a heel making machine, the combi- "nation of a supporting frame, a'revoluble turret head thereon, means' for revolving l I said head, a centrally'arranged stationary cam, and a circular series of heel clamps carried byA said head,'each embodying a heelcompressing plunger and lift-justifying members carried by said plunger, the plungers of the series of heel-clamps being successively actuated by said cam.

23. In a heel making machine, the combination of a supporting frame, a revoluble turret head thereon, Imeans for revolving cam, and a circular series of heel lclamps carried by said head, each embodying al displaceable heel table, a heel-compressing plunger and a table displacing member, the plungers and table displacing members of the series of` heel clamps being successively actuated by said cam.

24:. In a heel making machine, the combi-l lnation of a supporting frame, a revoluble turret head thereon, means for revolving Said head, a centrally-arranged cam, anda circular series of heel clamps carried by said head, each embodying a heel table,.a heelsaid head, a centrally arranged'stationary i compressing plunger arranged to beactuated `by said cam, lift-justifying members carried by said plunger, and rack and iinion `mechanism foractuating the lift-justifying members comprisinga feed screw carried by said plunger and engaging the lift-justifying members, a pinion on said screw, a stationary rack barwith which said pinion meshes and means for adjusting said rack longitudinally to regulate the space between the lift-justifying members.

25. In a heelimaking machine, the combif. nation of la supporting frame, a revoluble vturrethead thereon,A means for revolving said head, a centrally arranged cam, and

a circular series of heel clamps carriedby 'said head, each embodying a heel table, a

heel-compressing plunger arranged to be actuated by saidv cam, lift-justifying members carried by said lunger and means for varying the length o said plunger.

26. In a heel making machine, the combination of a centrally arranged stationary cam, and a revoluble turret head comprising a circular series of heel clamps arranged to move around said'cam and which embody ated or controlled by said cam, each of said heel clamps comprising a heel-compressing plunger arranged to be actuated by said cam, said cam having two faces Which operate o n said plunger at dierent periods in the revolution of the turret head.

28. In a heel making machine, the combination of a centrally arranged stationary cam, and a revoluble turret head comprisingl a circular series of heel .clamps arranged to move around said cam and which embody elements arranged to be successively oper-` f lated or controlled by said cam, each of said heel clamps comprising a heel-compressing plunger arranged to be actuated by said cam and lift-justifying means carried by said plunger.

29. In a heel making machine, thecombination `of a centrally arranged stationary cam, and a revoluble turret head comprising a circular 'series of heel clamps arranged to move around said cam and which embody elements arranged to be successively operated or controlled by said cam, each'of said heel clamps comprising a heel-compressing plunger arran ed to be actuated by said cam and lift-justi ying means carried by said plunger, said lift-justifying means being controlled in its operation by said plunger; 30. In a heel making machine, a revoluble vturret head comprising a circular series of heel clamps, in combination with a liftholder superimposed above said turret and mounted-for independent rotation onthe CHARLES E. ALLARD. Witnesses I ROBERT D. T1msn JOSEPH F. COURTNEY. 

